[Flutter] - ProviderNotFoundException

 

 

 

 

---

• 작성 코드

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

// 기존
class MyApp extends StatelessWidget {
  //현재 페이지 설정

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: ChattingPage(),
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider(
        create: (context) => ChattingProvider(), child: ChattingPage());
  }
}

---

• 에러 메시지

ProviderNotFoundException (Error: Could not find the correct Provider above this ChattingPage Widget

---

• 에러 발생 원인
  • - Provider를 만들기 전에 home위치를 ChattingPage로 바로 연결시켰는데, Provider를 만들면서 ChattingPage를 설정해줘서 생긴 에러라고 생각했다.

---

• 수정 코드

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

// 기존
class MyApp extends StatelessWidget {
  //현재 페이지 설정

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider(
        create: (context) => ChattingProvider(), child: ChattingPage());
  }

---

• 성공적으로 작동한다 ^^*